CN211230507U - Ingate side wall supporting structure - Google Patents
Ingate side wall supporting structure Download PDFInfo
- Publication number
- CN211230507U CN211230507U CN201921745758.2U CN201921745758U CN211230507U CN 211230507 U CN211230507 U CN 211230507U CN 201921745758 U CN201921745758 U CN 201921745758U CN 211230507 U CN211230507 U CN 211230507U
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- Prior art keywords
- reinforcing
- ingate
- tunnel
- support structure
- sidewall support
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- 230000008093 supporting effect Effects 0.000 title claims abstract description 28
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 67
- 238000010276 construction Methods 0.000 claims abstract description 13
- 241001023788 Cyttus traversi Species 0.000 claims abstract description 11
- 238000003780 insertion Methods 0.000 claims description 4
- 230000037431 insertion Effects 0.000 claims description 4
- 230000002093 peripheral effect Effects 0.000 abstract description 11
- 230000000694 effects Effects 0.000 abstract description 8
- 230000000452 restraining effect Effects 0.000 abstract description 3
- 230000002829 reductive effect Effects 0.000 abstract description 2
- 230000002787 reinforcement Effects 0.000 description 7
- 229910000831 Steel Inorganic materials 0.000 description 4
- 238000009412 basement excavation Methods 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 3
- 239000002893 slag Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 238000010079 rubber tapping Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000670 limiting effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000036961 partial effect Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
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- Excavating Of Shafts Or Tunnels (AREA)
Abstract
The utility model relates to a horse head door advances hole lateral wall supporting construction, including locating the beaded finish roof beam on the wall of a well, linked firmly a plurality of anchor strut on the beaded finish roof beam, each anchor strut is squeezed into respectively in the peripheral stratum of beaded finish roof beam. The utility model discloses a set up the anchor strut and link up the beaded finish roof beam with peripheral stratum, the deformation of beaded finish roof beam can receive the effective restraint of peripheral stratum, guarantees to the effect of strutting of lateral wall, improves the steadiness that the ingate advances the hole lateral wall remarkably. Furthermore, each reinforcing rod can be driven into the ground layer in front along the extending direction of the tunnel and avoids the contour of the tunnel, so that each reinforcing rod can also play a role of advanced support, and the risk of digging a hole into the horse head door is further reduced. In the supporting structure provided with the opposite supporting members, the reinforcing ring beam can be comprehensively, reliably and effectively restrained by matching with the restraining effect of the reinforcing rods on the reinforcing ring beam, the stress state of the side wall structure at the entrance of the ingate is improved, and the deformation of the side wall is effectively controlled.
Description
Technical Field
The utility model belongs to the technical field of tunnel engineering, concretely relates to ingate advances hole lateral wall supporting construction.
Background
The tunnel bridle door of the mine method enters the hole to be excavated, the stress state of the original vertical shaft side wall or the tunnel side wall structure is changed, if the construction is improper, the deformation of the original side wall structure is easily caused, the subsidence of the earth surface is increased, even the damage is caused in serious cases, the structural deformation and other adverse effects caused by the excavation are reduced, as shown in a figure 1 and a figure 2, a circle of reinforcing ring beam 1 is additionally arranged on the outer ring of the hole opening of the bridle door, and a pair support 2 is locally additionally arranged, so that the deformation resistance of the well wall is improved, the pair support 2 cannot be fully distributed along the periphery of the ring beam due to the requirements of excavation and slag discharge on the space, comprehensive effective restraint can not be provided for the reinforcing ring beam 1, the capability of controlling the deformation of the side wall through the reinforcing ring beam 1 cannot be effectively exerted, and the problems of deformation.
SUMMERY OF THE UTILITY MODEL
The utility model relates to a ingate advances hole lateral wall supporting construction can solve prior art's partial defect at least.
The utility model relates to a horse head door advances hole lateral wall supporting construction, including locating the beaded finish roof beam on the wall of a well, a plurality of anchor strut, each have been linked firmly on the beaded finish roof beam the anchor strut is squeezed into respectively in the peripheral stratum of beaded finish roof beam.
As an example, each of the reinforcing rods is driven into the ground ahead in the direction of extension of the tunnel and avoids the tunnel contour.
In one embodiment, the reinforcement ring beam includes an arched top beam and two edge beams respectively connected to both ends of the arched top beam.
In one embodiment, the arch bars are provided with reinforcing rods obliquely inserted into the ground above the tunnel at an angle to the horizontal direction.
In one embodiment, the edge beams are provided with reinforcing rods obliquely inserted into the ground layer outside the tunnel at an angle to the longitudinal direction of the tunnel.
As one embodiment, the angle of the oblique insertion of the reinforcing rod is 30-45 degrees.
In one embodiment, the stiffening rod is a small lead catheter.
As one embodiment, the length of the reinforcing rod is 3-5 m.
In one embodiment, the reinforcing rods are welded to the main ribs of the reinforcing ring beam.
As an embodiment, the ingate side wall supporting structure further comprises a plurality of opposite bracing members, one end of each opposite bracing member is connected to the reinforcing ring beam, and the other end of each opposite bracing member is connected to the side wall of the opposite side.
The utility model discloses following beneficial effect has at least:
the utility model provides a horse head door advances hole lateral wall supporting construction links up the beaded finish roof beam with peripheral stratum through setting up the anchor strut, and the deformation of beaded finish roof beam can receive the effective restraint of peripheral stratum, guarantees the effect of strutting to the lateral wall to improve the steadiness that horse head door advances the hole lateral wall remarkably.
The utility model discloses further following beneficial effect has at least:
the utility model provides a horse head door advances hole lateral wall supporting construction squeezes into the stratum in the place ahead along the tunnel extending direction with each anchor strut to, squeeze into each anchor strut in the stratum around the tunnel when restraint beaded finish roof beam, can also play advance support's effect, further reduce the risk that horse head door opened to dig into the hole.
The utility model discloses further following beneficial effect has at least:
the utility model provides a horse head door advances hole lateral wall supporting construction links up the beaded finish roof beam with peripheral stratum through the anchor strut to the cooperation can provide all-round, reliably and retrain effectively to the beaded finish roof beam to the supporting role of propping the component to the beaded finish roof beam, improves the stress state that horse head door advances hole department lateral wall structure, controls the lateral wall deformation effectively.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic view of a side wall supporting structure of a horsehead portal in the prior art;
FIG. 2 is a cross-sectional view taken along A-A of FIG. 1;
fig. 3 is a schematic structural view of a ingate side wall supporting structure according to an embodiment of the present invention;
fig. 4 is a cross-sectional view taken along line B-B of fig. 3.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
As fig. 3 and fig. 4, the embodiment of the utility model provides a ingate advances hole lateral wall supporting construction, including locating beaded finish 1 on the wall of a well, beaded finish 1 can adopt conventional ring roof beam supporting construction, and generally speaking, it is the same with ingate shape, follows the entrance to a cave of ingate promptly and adds and establish round beaded finish 1, and this beaded finish 1 includes the arch back timber and connect respectively in two boundary beams at arch back timber both ends.
Further, as shown in fig. 3 and 4, a plurality of reinforcing rods 3 are fixedly connected to the reinforcement ring beam 1, and each reinforcing rod 3 is driven into the ground layer around the reinforcement ring beam 1. The fastening of the reinforcing rod 3 is preferably welded to the main rib of the reinforcement ring beam 1, but other fastening means such as screwing may be applied to the present embodiment.
The ingate lateral wall supporting structure provided by the embodiment links the reinforcing ring beam 1 with the peripheral stratum by arranging the reinforcing rods 3, the deformation of the reinforcing ring beam 1 can be effectively restrained by the peripheral stratum, the supporting effect on the lateral wall is ensured, and therefore the stability of the ingate lateral wall is remarkably improved.
Obviously, it is preferable that the arched top beams and the two side beams are respectively provided with a plurality of reinforcing rods 3, so that the reinforcing ring beam 1 is better restrained.
In a further preferred embodiment, as shown in fig. 3 and 4, each reinforcing rod 3 is driven into the ground ahead along the extending direction of the tunnel and avoids the contour of the tunnel, so that each reinforcing rod 3 driven into the ground around the tunnel can play a role of advance support while restraining the reinforcing ring beam 1, and further reduces the risk of digging a hole through the ingate.
Each reinforcing bar 3 is preferably driven in a dispersed manner into the ground surrounding the reinforcement ring beam 1, in particular:
(1) and the reinforcing rods 3 arranged on the arch top beams are obliquely inserted into the stratum above the tunnel at an included angle with the horizontal direction. Preferably, the angle of the diagonal insertion of the reinforcing rods 3 is 30 ° to 45 °.
(2) The reinforcing rods 3 arranged on the boundary beams are obliquely inserted into the stratum outside the tunnel at an included angle with the longitudinal direction of the tunnel. Preferably, the angle of the diagonal insertion of the reinforcing rods 3 is 30 ° to 45 °.
Based on the structure, on one hand, the peripheral stratum participating in the constraint action is wider, and the constraint effect on the reinforced ring beam 1 is better; on the other hand, the reinforcing ring beam 1 is restrained at multiple angles, so that the structural stability of the reinforcing ring beam 1 is higher.
In a further preferred embodiment, the reinforcing bar 3 is a small lead pipe 3, the small lead pipe 3 being conventional in the art, typically a steel pipe, and being grouted. In the embodiment, the small advanced conduit 3 has the conventional advanced supporting function and has the main function of restraining the reinforcement ring beam 1; when the forepoling function of the reinforcing rod 3/the small forepoling guide pipe 3 is not enough to meet the design requirement, the small forepoling guide pipe 3 can be driven into the small forepoling guide pipe 3 to carry out compensation shoring according to the conventional operation. Of course, the form of the reinforcing bar 3 is not limited to the use of a leading small pipe 3, such as a solid steel bar, a high strength plastic bar, or the like.
Further preferably, the length of the reinforcing rod 3 is 3-5 m, so that the grasping and meshing effect with the surrounding stratum can be met, the reliable constraint on the reinforcing ring beam 1 is guaranteed, and the required advanced support effect can be achieved. Obviously, the longer the length of the reinforcing rod 3, the better the above effect, and the economic cost can be comprehensively considered for design.
The construction method of the reinforcing bar 3 is substantially as follows: in the process that the reinforcing ring beam steel bars are embedded in the well wall in sections, the reinforcing rods 3 are synchronously and batch-wise driven into the peripheral stratum, and the reinforcing rods 3 and the main bars of the reinforcing ring beam 1 are welded together.
Further preferably, as shown in fig. 3 and 4, the ingate side wall supporting structure further comprises a plurality of opposite bracing members 2, wherein one end of each opposite bracing member 2 is connected to the reinforced ring beam 1, and the other end of each opposite bracing member is connected to the side wall of the opposite side. In order to meet the space requirement of tunnel excavation and slag tapping, the opposite support members 2 are generally not fully distributed along the periphery of the reinforced ring beam 1, and the reinforcing rods 3 are at least arranged in the area of the reinforced ring beam 1 where the opposite support members 2 are not arranged; however, it is more preferable that the reinforcing rods 3 are arranged along the circumferential direction of the reinforcing ring beam 1, and the bracing members 2 cover the respective regions of the reinforcing ring beam 1 as much as possible while satisfying the space requirement for tunnel excavation and slag tapping.
The pair of bracing members 2 are preferably steel members which may be welded to the main reinforcement of the ring beam.
The reinforcing ring beam 1 is connected with the surrounding stratum through the reinforcing rods 3, and the supporting effect of the supporting members 2 on the reinforcing ring beam 1 is matched, so that the reinforcing ring beam 1 can be comprehensively, reliably and effectively restrained, the stress state of the side wall structure at the entrance of the ingate is improved, and the deformation of the side wall is effectively controlled.
The supporting structure provided by the embodiment is simple, convenient and feasible in engineering construction, economic and reasonable, and has better economic benefit and popularization prospect.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. The utility model provides a horse head door advances hole lateral wall supporting construction, is including locating the beaded finish roof beam on the wall of a well, its characterized in that: and the reinforcing ring beam is fixedly connected with a plurality of reinforcing rods, and the reinforcing rods are respectively driven into the stratum around the reinforcing ring beam.
2. The ingate entry sidewall support structure of claim 1, wherein: each of the reinforcing bars is driven into the ground ahead in the direction of extension of the tunnel and avoids the contour of the tunnel.
3. The ingate entry sidewall support structure of claim 1, wherein: the reinforcing ring beam comprises an arch top beam and two edge beams which are respectively connected to two ends of the arch top beam.
4. The ingate entry sidewall support structure of claim 3, wherein: and the reinforcing rods arranged on the arch top beams are obliquely inserted into the stratum above the tunnel at an included angle with the horizontal direction.
5. The ingate entry sidewall support structure of claim 3, wherein: and the reinforcing rods arranged on the edge beams and the longitudinal direction of the tunnel form an included angle and are obliquely inserted into the stratum on the outer side of the tunnel.
6. The ingate entry sidewall support structure of claim 4 or 5, wherein: the angle of the reinforcing rod in inclined insertion is 30-45 degrees.
7. The ingate entry sidewall support structure of claim 1, wherein: the reinforcing rod is a small advanced conduit.
8. The ingate entry sidewall support structure of claim 1 or 7, wherein: the length of the reinforcing rod is 3-5 m.
9. The ingate entry sidewall support structure of claim 1 or 7, wherein: and the reinforcing rods are welded with the main ribs of the reinforcing ring beam.
10. The ingate entry sidewall support structure of claim 1, wherein: the well wall structure further comprises a plurality of opposite supporting members, wherein one ends of the opposite supporting members are connected to the reinforcing ring beams, and the other ends of the opposite supporting members are connected to the well wall on the opposite side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921745758.2U CN211230507U (en) | 2019-10-17 | 2019-10-17 | Ingate side wall supporting structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921745758.2U CN211230507U (en) | 2019-10-17 | 2019-10-17 | Ingate side wall supporting structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211230507U true CN211230507U (en) | 2020-08-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921745758.2U Expired - Fee Related CN211230507U (en) | 2019-10-17 | 2019-10-17 | Ingate side wall supporting structure |
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| Country | Link |
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| CN (1) | CN211230507U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112253137A (en) * | 2020-11-03 | 2021-01-22 | 中铁隆工程集团有限公司 | Construction method for removing and reinforcing key technology of ingate |
-
2019
- 2019-10-17 CN CN201921745758.2U patent/CN211230507U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112253137A (en) * | 2020-11-03 | 2021-01-22 | 中铁隆工程集团有限公司 | Construction method for removing and reinforcing key technology of ingate |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200811 |